./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:50,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:50,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:50,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:50,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:50,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:50,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:50,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:50,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:50,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:50,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:50,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:50,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:50,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:50,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:50,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:50,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:50,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:50,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:50,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:50,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:50,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:50,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:50,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:50,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:50,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:50,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:50,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:50,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:50,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:50,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:50,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:50,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:50,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:50,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:50,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:50,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:50,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:50,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:50,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:50,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:50,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:34:50,500 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:50,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:50,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:50,502 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:50,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:50,503 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:50,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:34:50,503 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:50,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:50,504 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:34:50,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:34:50,504 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:50,505 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:34:50,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:34:50,505 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:34:50,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:50,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:34:50,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:34:50,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:34:50,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:50,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:50,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:50,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:50,508 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:50,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:34:50,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:50,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:50,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:50,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:50,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:50,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:50,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:50,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:50,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:50,511 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:34:50,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:34:50,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:50,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:50,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:50,519 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2021-11-07 01:34:50,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:50,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:50,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:50,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:50,990 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:50,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-11-07 01:34:51,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/6790c25be/28060df289e84ba880a7c3923d00cab3/FLAGf055e176b [2021-11-07 01:34:51,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:51,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-11-07 01:34:51,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/6790c25be/28060df289e84ba880a7c3923d00cab3/FLAGf055e176b [2021-11-07 01:34:52,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/6790c25be/28060df289e84ba880a7c3923d00cab3 [2021-11-07 01:34:52,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:52,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:52,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:52,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:52,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:52,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:52" (1/1) ... [2021-11-07 01:34:52,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2595c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:52, skipping insertion in model container [2021-11-07 01:34:52,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:52" (1/1) ... [2021-11-07 01:34:52,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:52,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:52,570 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-11-07 01:34:52,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:52,598 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:34:52,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f52c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:52, skipping insertion in model container [2021-11-07 01:34:52,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:52,600 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:34:52,607 INFO L168 Benchmark]: Toolchain (without parser) took 557.40 ms. Allocated memory is still 96.5 MB. Free memory was 58.8 MB in the beginning and 69.3 MB in the end (delta: -10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:52,609 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 96.5 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 58.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:34:52,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.12 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 69.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:34:52,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 96.5 MB. Free memory was 76.0 MB in the beginning and 76.0 MB in the end (delta: 58.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 550.12 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 69.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 78]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:34:55,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:34:55,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:34:55,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:34:55,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:34:55,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:34:55,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:34:55,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:34:55,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:34:55,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:34:55,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:34:55,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:34:55,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:34:55,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:34:55,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:34:55,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:34:55,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:34:55,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:34:55,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:34:55,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:34:55,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:34:55,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:34:55,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:34:55,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:34:55,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:34:55,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:34:55,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:34:55,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:34:55,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:34:55,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:34:55,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:34:55,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:34:55,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:34:55,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:34:55,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:34:55,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:34:55,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:34:55,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:34:55,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:34:55,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:34:55,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:34:55,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:34:55,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:34:55,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:34:55,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:34:55,855 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:34:55,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:34:55,856 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:34:55,856 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:34:55,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:34:55,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:34:55,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:34:55,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:34:55,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:34:55,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:34:55,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:34:55,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:34:55,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:34:55,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:34:55,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:34:55,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:34:55,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:34:55,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:34:55,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:34:55,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:34:55,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:34:55,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:34:55,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:34:55,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:55,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:34:55,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:34:55,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:34:55,868 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:34:55,869 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:34:55,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:34:55,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:34:55,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:34:55,871 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5399744cbc243992ccbbf21bf0e09dd5dced55fce1050770392b2964c31c4145 [2021-11-07 01:34:56,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:34:56,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:34:56,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:34:56,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:34:56,440 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:34:56,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-11-07 01:34:56,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/38c7cbc9f/7e1c94ac24d44bbca0a3cb74b7a73695/FLAG44ee29475 [2021-11-07 01:34:57,240 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:34:57,241 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-11-07 01:34:57,258 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/38c7cbc9f/7e1c94ac24d44bbca0a3cb74b7a73695/FLAG44ee29475 [2021-11-07 01:34:57,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/data/38c7cbc9f/7e1c94ac24d44bbca0a3cb74b7a73695 [2021-11-07 01:34:57,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:34:57,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:34:57,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:57,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:34:57,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:34:57,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:57" (1/1) ... [2021-11-07 01:34:57,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d19cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:57, skipping insertion in model container [2021-11-07 01:34:57,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:57" (1/1) ... [2021-11-07 01:34:57,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:34:57,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:58,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-11-07 01:34:58,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:58,267 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:34:58,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:34:58,398 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-11-07 01:34:58,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:58,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:34:58,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[17260,17273] [2021-11-07 01:34:58,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:34:58,550 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:34:58,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58 WrapperNode [2021-11-07 01:34:58,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:34:58,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:58,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:34:58,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:34:58,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:34:58,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:34:58,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:34:58,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:34:58,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:34:58,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:34:58,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:34:58,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:34:58,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (1/1) ... [2021-11-07 01:34:58,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:34:58,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:58,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:34:58,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:34:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:34:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:34:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:34:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:35:01,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:35:01,956 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-11-07 01:35:01,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:01 BoogieIcfgContainer [2021-11-07 01:35:01,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:35:01,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:35:01,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:35:01,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:35:01,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:34:57" (1/3) ... [2021-11-07 01:35:01,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c08fd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:01, skipping insertion in model container [2021-11-07 01:35:01,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:58" (2/3) ... [2021-11-07 01:35:01,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c08fd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:01, skipping insertion in model container [2021-11-07 01:35:01,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:01" (3/3) ... [2021-11-07 01:35:01,973 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2021-11-07 01:35:01,980 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:35:01,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:35:02,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:35:02,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:35:02,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:35:02,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:35:02,096 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:02,096 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:02,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:02,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:02,105 INFO L85 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2021-11-07 01:35:02,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:02,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073120770] [2021-11-07 01:35:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:02,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:02,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:02,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:02,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:35:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:02,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:35:02,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:02,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:02,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:02,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073120770] [2021-11-07 01:35:02,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073120770] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:02,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:02,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:35:02,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387587825] [2021-11-07 01:35:02,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:35:02,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:02,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:35:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:35:02,778 INFO L87 Difference]: Start difference. First operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:02,810 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2021-11-07 01:35:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:35:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:35:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:02,824 INFO L225 Difference]: With dead ends: 150 [2021-11-07 01:35:02,824 INFO L226 Difference]: Without dead ends: 74 [2021-11-07 01:35:02,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:35:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-07 01:35:02,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-07 01:35:02,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 73 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-11-07 01:35:02,880 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2021-11-07 01:35:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:02,881 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-11-07 01:35:02,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-11-07 01:35:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:35:02,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:02,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:02,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:03,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2021-11-07 01:35:03,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:03,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488780151] [2021-11-07 01:35:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:03,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:03,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:03,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:35:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:03,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:35:03,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:03,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:03,608 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:03,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488780151] [2021-11-07 01:35:03,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488780151] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:03,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:03,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:35:03,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672329537] [2021-11-07 01:35:03,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:35:03,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:03,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:35:03,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:03,614 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:03,644 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2021-11-07 01:35:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:35:03,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 01:35:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:03,651 INFO L225 Difference]: With dead ends: 74 [2021-11-07 01:35:03,651 INFO L226 Difference]: Without dead ends: 34 [2021-11-07 01:35:03,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-07 01:35:03,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-07 01:35:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-11-07 01:35:03,673 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2021-11-07 01:35:03,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:03,673 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-11-07 01:35:03,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-11-07 01:35:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:35:03,677 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:03,681 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:03,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:03,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,883 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2021-11-07 01:35:03,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:03,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283450006] [2021-11-07 01:35:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:03,886 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:03,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:03,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:03,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:35:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:04,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:35:04,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:04,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:04,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:04,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283450006] [2021-11-07 01:35:04,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283450006] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:04,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:04,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:35:04,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52812619] [2021-11-07 01:35:04,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:35:04,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:04,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:35:04,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:04,469 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:04,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:04,479 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2021-11-07 01:35:04,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:35:04,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-07 01:35:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:04,482 INFO L225 Difference]: With dead ends: 62 [2021-11-07 01:35:04,482 INFO L226 Difference]: Without dead ends: 34 [2021-11-07 01:35:04,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-07 01:35:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-07 01:35:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-11-07 01:35:04,490 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2021-11-07 01:35:04,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:04,491 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-11-07 01:35:04,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-11-07 01:35:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:35:04,493 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:04,493 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:04,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:35:04,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:04,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2021-11-07 01:35:04,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:04,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599621493] [2021-11-07 01:35:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:04,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:04,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:04,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:35:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:04,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:35:04,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:05,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:05,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:05,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599621493] [2021-11-07 01:35:05,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599621493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:05,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:05,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:35:05,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952184174] [2021-11-07 01:35:05,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:35:05,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:35:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:35:05,178 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:05,243 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2021-11-07 01:35:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:35:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 01:35:05,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:05,245 INFO L225 Difference]: With dead ends: 83 [2021-11-07 01:35:05,245 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 01:35:05,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:35:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 01:35:05,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-11-07 01:35:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2021-11-07 01:35:05,256 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2021-11-07 01:35:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:05,256 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2021-11-07 01:35:05,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2021-11-07 01:35:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:35:05,258 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:05,259 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:05,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:05,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:05,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2021-11-07 01:35:05,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:05,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776930488] [2021-11-07 01:35:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:05,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:05,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:05,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:35:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:05,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:35:05,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:05,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:06,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:06,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:06,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776930488] [2021-11-07 01:35:06,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776930488] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:06,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:06,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:35:06,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394419232] [2021-11-07 01:35:06,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:35:06,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:35:06,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:35:06,012 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:06,117 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2021-11-07 01:35:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:35:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 01:35:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:06,121 INFO L225 Difference]: With dead ends: 139 [2021-11-07 01:35:06,122 INFO L226 Difference]: Without dead ends: 92 [2021-11-07 01:35:06,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:35:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-07 01:35:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2021-11-07 01:35:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-11-07 01:35:06,150 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2021-11-07 01:35:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:06,151 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-11-07 01:35:06,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-11-07 01:35:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:35:06,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:06,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:06,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:06,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:06,371 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:06,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:06,372 INFO L85 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2021-11-07 01:35:06,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:06,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566804790] [2021-11-07 01:35:06,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:06,374 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:06,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:06,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:06,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:35:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:06,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:35:06,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:06,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:07,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:07,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566804790] [2021-11-07 01:35:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566804790] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:07,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:07,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:35:07,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914656080] [2021-11-07 01:35:07,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:35:07,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:35:07,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:35:07,036 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:07,399 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2021-11-07 01:35:07,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:35:07,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 01:35:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:07,403 INFO L225 Difference]: With dead ends: 390 [2021-11-07 01:35:07,404 INFO L226 Difference]: Without dead ends: 340 [2021-11-07 01:35:07,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:35:07,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-07 01:35:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2021-11-07 01:35:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 139 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:07,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2021-11-07 01:35:07,435 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2021-11-07 01:35:07,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:07,436 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2021-11-07 01:35:07,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2021-11-07 01:35:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:35:07,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:07,440 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:07,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:07,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:07,657 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:07,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1650264504, now seen corresponding path program 1 times [2021-11-07 01:35:07,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:07,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55631448] [2021-11-07 01:35:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:07,659 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:07,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:07,664 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:07,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:35:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:07,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:35:07,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:35:08,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:08,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:35:08,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:08,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55631448] [2021-11-07 01:35:08,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55631448] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:08,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:08,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:35:08,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901347750] [2021-11-07 01:35:08,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:35:08,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:35:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:35:08,295 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:08,364 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2021-11-07 01:35:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:35:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 01:35:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:08,367 INFO L225 Difference]: With dead ends: 325 [2021-11-07 01:35:08,367 INFO L226 Difference]: Without dead ends: 191 [2021-11-07 01:35:08,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:35:08,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-07 01:35:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2021-11-07 01:35:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 119 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2021-11-07 01:35:08,415 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2021-11-07 01:35:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:08,418 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2021-11-07 01:35:08,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2021-11-07 01:35:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:35:08,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:08,430 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:08,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:08,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:08,648 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:08,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:08,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1693810360, now seen corresponding path program 1 times [2021-11-07 01:35:08,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:08,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525917147] [2021-11-07 01:35:08,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:08,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:08,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:08,653 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:08,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:35:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:08,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:08,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:09,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:09,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:09,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525917147] [2021-11-07 01:35:09,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525917147] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:09,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1671399799] [2021-11-07 01:35:09,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:09,485 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:35:09,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:35:09,495 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:35:09,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 01:35:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:09,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:09,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:10,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:10,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1671399799] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:10,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048622879] [2021-11-07 01:35:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:10,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:35:10,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:35:10,372 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:35:10,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 01:35:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:10,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:10,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:10,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:35:11,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048622879] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:11,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:35:11,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-11-07 01:35:11,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904149578] [2021-11-07 01:35:11,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:35:11,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:11,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:35:11,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:35:11,188 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:15,232 INFO L93 Difference]: Finished difference Result 727 states and 1006 transitions. [2021-11-07 01:35:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 01:35:15,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 01:35:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:15,238 INFO L225 Difference]: With dead ends: 727 [2021-11-07 01:35:15,238 INFO L226 Difference]: Without dead ends: 636 [2021-11-07 01:35:15,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:35:15,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-11-07 01:35:15,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 217. [2021-11-07 01:35:15,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 216 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2021-11-07 01:35:15,314 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 45 [2021-11-07 01:35:15,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:15,314 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2021-11-07 01:35:15,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2021-11-07 01:35:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:35:15,319 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:15,320 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:15,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:15,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:15,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:15,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:15,933 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:35:15,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1880584764, now seen corresponding path program 2 times [2021-11-07 01:35:15,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:15,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365869252] [2021-11-07 01:35:15,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:35:15,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:15,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:15,938 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:15,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:35:17,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:35:17,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-11-07 01:35:17,786 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:35:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:35:20,019 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:35:20,019 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:35:20,020 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:35:20,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:35:20,022 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:35:20,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:20,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:20,226 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:20,230 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:35:20,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:35:20 BoogieIcfgContainer [2021-11-07 01:35:20,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:35:20,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:35:20,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:35:20,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:35:20,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:01" (3/4) ... [2021-11-07 01:35:20,441 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:35:20,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:35:20,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:35:20,608 INFO L168 Benchmark]: Toolchain (without parser) took 23058.64 ms. Allocated memory was 65.0 MB in the beginning and 109.1 MB in the end (delta: 44.0 MB). Free memory was 43.9 MB in the beginning and 63.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 66.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,608 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:35:20,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 998.86 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 34.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 65.0 MB. Free memory was 34.2 MB in the beginning and 31.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,610 INFO L168 Benchmark]: Boogie Preprocessor took 76.56 ms. Allocated memory is still 65.0 MB. Free memory was 31.1 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,611 INFO L168 Benchmark]: RCFGBuilder took 3218.43 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 28.8 MB in the beginning and 42.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,611 INFO L168 Benchmark]: TraceAbstraction took 18472.72 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 41.4 MB in the beginning and 28.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,612 INFO L168 Benchmark]: Witness Printer took 168.77 ms. Allocated memory is still 109.1 MB. Free memory was 28.8 MB in the beginning and 63.2 MB in the end (delta: -34.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:35:20,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 998.86 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 34.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 65.0 MB. Free memory was 34.2 MB in the beginning and 31.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.56 ms. Allocated memory is still 65.0 MB. Free memory was 31.1 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3218.43 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 28.8 MB in the beginning and 42.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18472.72 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 41.4 MB in the beginning and 28.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * Witness Printer took 168.77 ms. Allocated memory is still 109.1 MB. Free memory was 28.8 MB in the beginning and 63.2 MB in the end (delta: -34.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 879]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L625] int waterLevel = 1; [L626] int methaneLevelCritical = 0; [L722] int pumpRunning = 0; [L723] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L643] COND TRUE waterLevel < 2 [L644] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L762] COND TRUE ! pumpRunning [L856] int retValue_acc ; [L857] int tmp ; [L858] int tmp___0 ; [L705] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] COND FALSE !(waterLevel < 2) [L712] retValue_acc = 0 [L713] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] tmp = isHighWaterSensorDry() [L864] COND FALSE !(\read(tmp)) [L867] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] retValue_acc = tmp___0 [L870] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] tmp = isHighWaterLevel() [L766] COND TRUE \read(tmp) [L787] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L730] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L762] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] tmp = getWaterLevel() [L892] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L730] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] COND TRUE waterLevel > 0 [L632] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L737] COND TRUE \read(systemActive) [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L762] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L885] int tmp ; [L886] int tmp___0 ; [L696] int retValue_acc ; [L699] retValue_acc = waterLevel [L700] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L890] tmp = getWaterLevel() [L892] COND TRUE tmp == 0 [L811] int retValue_acc ; [L814] retValue_acc = pumpRunning [L815] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L894] tmp___0 = isPumpRunning() [L896] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L879] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 879]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 879]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 18.1s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 1312 SDslu, 1289 SDs, 0 SdLazy, 280 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 728 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 1463 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2095 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 58/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 01:35:20,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a9c360a-4ee7-4a4e-95ec-fed667196d06/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE